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TYC 3091-390-1

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ICCD speckle observations of binary stars. 11: Measurements during 1991-1993 from the Kitt Peak 4 M telescope One-thousand one-hundred ninety-seven observations of 730 binary starsystems, observed by means of speckle interferometry with the 4 mtelescope on Kitt Peak, are presented. Included in these binary starsare new interferometric companions to five visual binaries. Thesemeasurements, made mostly during the period 1991 to 1993, comprise the11th installment of results stemming from our speckle program at the 4 mclass telescopes on Kitt Peak, Cerro Tololo, and Mauna Kea.
Mesures d'etoiles doubles faites a Nice, etoiles doubles nouvelles (24eme serie) decouvertes a Nice. Table 1 gives 1182 measurements of 682 binaries observed with the 74 and50 cm refractors. Table 2 lists 26 new binaries discovered with the 50cm refractor.
Measurements of double stars at Nice with 74-cm and 50-cm refractors A total of 717 measures of 287 binaries made at the 74-cm and 50-cmrefractors are presented. These are mostly very close binariesdiscovered recently, for which a rapid orbital motion is evident forabout 30 percent.
Etoiles doubles nouvelles (13eme serie) decouvertes a Nice. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1976A&AS...24..495C&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:	Herkul
Sað Açýklýk:	17^h34^m32.83^s
Yükselim:	+39Â°35'23.6"
Görünürdeki Parlaklýk:	9.374
özdevim Sað Açýklýk:	-3.6
özdevim Yükselim:	-18.4
B-T magnitude:	9.783
V-T magnitude:	9.408

Kataloglar ve belirtme:

Özgün isimleri	(Edit)
TYCHO-2 2000	TYC 3091-390-1
USNO-A2.0	USNO-A2 1275-09437841
HIP	HIP 85995

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